I am using nitrous.io and have attempted to setup wordpress multi-site using the instructions here.
http://codex.wordpress.org/Create_A_Network
It breaks after step 4 when I attempt to login after changing the wp-config.php and .htaccess file.
I am choosing the sub directory option.
I get stuck in an endless redirect loop.
I have attempted taking out the port number 80 which wordpress put in the following line.
define('DOMAIN_CURRENT_SITE', 'publicurlhere.com')
Still no luck.
I believe this has something to do with it being hosted on port 3000 and a problem with proxy settings from nitrous.io that wordpress can’t handle.
EDIT
I changed the port to 3000
define('DOMAIN_CURRENT_SITE', 'publicurlhere.com:3000')
And now I get the message:
Multisite only works without the port number in the URL.
Looking at the wordpress docs it looks like this is a limitation of wordpress and will not work on a different port.
http://codex.wordpress.org/Before_You_Create_A_Network